Docstoc

Practice Quiz

Document Sample
Practice Quiz Powered By Docstoc
					      Quiz # 2
Endocrine Physiology
   Physiology Fall 2009
   Answers on last page
1. An increase in plasma calcium
  concentration should result in:
a. Increased parathyroid hormone
    secretion
b. More conversion of Vitamin D to the
    active hormone in the kidney
c. More excretion of Ca++ in urine
d. Increased resorption of bones by
    osteoclasts
2. Which of the following is released
  from the anterior pituitary gland?
a. Follicle stimulating hormone
b. Vasopressin
c. Oxytocin
d. Somatostatin
e. Gonadotropin Releasing Hormone
3. Which of the following lead(s) to an
  increase in cortisol?
a.   decreased adrenocortotropic hormone
b.   decreased corticotropin releasing hormone
c.   deccreased thyroid stimulating hormone
d.   Prolonged exposure to cold
e.   Psychological anxiety
f.   Increased levels of Vasopressin
g.   Cytokines from cells of the immune system
4. Cell of the adrenal cortex secrete
  more aldosterone in response to
  which of the following ?
a.   Increasing plasma concentration of K+
b.   Angiotensin I
c.   Angiontensin II
d.   ACTH
5. Addison’s Disease is characterized by:
a. decreased cortisol
b. Disturbances in plasma electrolytes
c. increased adrenocorticotropic
    hormone secretion
d. more than normal aldosterone
    secretion
e. Stimulation of melanocytes
6. Which of the following hormones
  travels in the blood bound to carrier
  proteins?
a. IGF-1
b. T3
c. Aldosterone
d. Dopamine
e. Estrione
f. TSH
7. TRH is synthesized in and released
  from the:
a. Anterior pituitary
b. Posterior pituitary
c. Adrenal cortex
d. hypothalamus
8. A girl in her teens develops an
  adenoma in the adenohypophysis
  which secretes excessive amounts of
  Growth Hormone. Which of the
  following are to be expected:
a. She will grow abnormally tall
b. Plasma levels of IGF-1 will be high.
c. Plasma levels of GHRH will be low
d. Bones of the face, hands, and feet will
  gradually atrophy.
9. Which of the following reaches its
  target cells by first entering capillaries
  in the median eminence?
a. TRH
b. Adrenocorticotropic hormone
c. Somatostatin
d. Corticotropin Releasing Hormone.
10. Which ONE of the following
  hormones is eliminated most rapidly
  from the bloodstream?
a.TSH
b.Aldosterone
c.EPI
11. Angiotensin II has the following
 actions:
a.stimulates thirst
b.relaxes smooth muscles of blood vessels
  thereby lowering blood pressure
c.Stimulates the secretion of cortisol
d.Stimulates the secretion of a
  mineralicorticoid
12. In patients with untreated
 Hashimoto’s disease which of the
 following would be expected?
a.Low blood pressure
b.bradycardia
c.constipation
d.Hypothermia
e.Elevated levels of TSH
f. Elevated levels of TH
13. Which of the following hormones
 have receptors on the cell surface of
 their target cells?
a.Aldosterone
b.TRH
c.EPI
d.Cortisol
e.Oxytocin
f. Prolactin
14. Suppose a patient presents with low
 levels of TSH and high levels of T3 and
 T4. The diagnosis is most likely
a.Primary hyposecretion
b.Primary hypersecretion
c.Secondary hypersecretion.
                     Answers
• 1C                        •   8 ABC
• 2A                        •   9 ACD
• 3 DEFG                    •   10 C
• 4 AC                      •   11 AD
• 5 ABCE                    •   12 ABCDE
• 6 BC (E will not be       •   13 BCEF
  counted either way        •   14 B
  because estrone was
  mispelled on the quiz.)
• 7D

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:5
posted:12/14/2011
language:English
pages:16